Apparatus, Server, and Method for Providing Conversation Topic

2. The device of claim 1, wherein the processor is further configured to determine sub topics which correspond to a sub concept of the at least one keyword, and determine related topics which correspond to a concept equivalent to the at least one keyword in consideration of the information of the user.

3. The device of claim 1, wherein the conversation topics are determined by inputting the at least one keyword into the user interest model.

4. The device of claim 1, wherein the processor is configured to control the display to display, when the user selects one of the displayed conversation topics, the selected display conversation topic as the detail information.

5. The device of claim 1, wherein the user interest model being updated by correcting a weight given to each of the plurality of topic candidates when the information of the user is updated.

6. The device of claim 1, wherein, when a word such as a place, time, or a person is detected from the text, the processor is configured to determine the word indicating the place, the time, or the person as the at least one keyword.

7. The device of claim 6, wherein the processor is configured to search for a word identical to the word indicating the place, the time, or the person in an SMS or SNS message of the user, and determine the SMS or SNS message of the user including the identical word as the detail information with respect to the at least one keyword.

8. The device of claim 1, wherein the processor is configured to extract the information corresponding to the interests of the user from the searched result, and reconfigure the extracted information.

10. The device of claim 1, wherein the processor is configured to control the display to display the detail information in a largest display region and the conversation topics on a lowermost display region.

13. The method of claim 11, wherein the conversation topics are determined by inputting the at least one keyword into the user interest model.

14. The method of claim 11, further comprising displaying, when the user selects one of the displayed conversation topics, the selected conversation topic as the detail information.

15. The method of claim 11, wherein the user interest model being updated by correcting a weight given to each of the plurality of topic candidates when the information of the user is updated.

16. The method of claim 11, wherein when a word such as a place, time, or a person is detected from the text, the determining the at least one keyword comprises determining the word indicating the place, the time, or the person as the at least one keyword.

20. The method of claim 11, wherein the displaying both the detail information and the determined conversation topics comprises displaying the detail information in a largest display region and the conversation topics on a lowermost display region.